"""
用户模型
"""
from datetime import datetime
from typing import Optional
from sqlmodel import SQLModel, Field


class User(SQLModel, table=True):
    """用户表"""
    __tablename__ = "users"
    
    id: Optional[int] = Field(default=None, primary_key=True)
    username: str = Field(max_length=50, unique=True, index=True)
    email: Optional[str] = Field(default=None, max_length=100, unique=True, index=True)
    hashed_password: str
    created_at: datetime = Field(default_factory=datetime.now)